Rework safe area insets with CSS variables and per-element spacers

Replace container-level env(safe-area-inset-*) inline padding with
--safe-top/--safe-bottom CSS variables applied per-element: drawer,
task list panel, detail panels, FAB, settings overlay, error banner,
and setup screen. Wrap task list in {#key app.activeListId} to force
re-render on list switch (co-located with FAB safe-bottom fix).

apps/tauri/src/App.svelte

@@ -19,18 +19,27 @@
       class="relative h-full w-full overflow-hidden bg-surface-light text-text-light dark:bg-surface-dark dark:text-text-dark"
       class:rounded-xl={isLinux}
       class:linux-window-border={isLinux}
-      style="container-type: inline-size{isMobile ? '; padding-top: env(safe-area-inset-top); padding-bottom: env(safe-area-inset-bottom)' : ''}"
+      style="container-type: inline-size"
     >
       {#if app.error}
         <div
           class="absolute top-0 left-0 right-0 z-50 flex items-center justify-between bg-danger px-4 py-2 text-sm text-white"
+          style="top: env(safe-area-inset-top)"
         >
           <span>{app.error}</span>
           <button onclick={() => app.clearError()} class="ml-2 font-bold">✕</button>
         </div>
       {/if}
 
-      {#if app.screen === "missing"}
+      {#if app.initialSync}
+        <div class="flex h-full flex-col items-center justify-center gap-4">
+          <svg class="h-8 w-8 animate-spin text-primary" viewBox="0 0 24 24" fill="none">
+            <circle cx="12" cy="12" r="10" stroke="currentColor" stroke-width="3" opacity="0.25" />
+            <path d="M12 2a10 10 0 0 1 10 10" stroke="currentColor" stroke-width="3" stroke-linecap="round" />
+          </svg>
+          <p class="text-sm text-text-secondary-light dark:text-text-secondary-dark">Syncing workspace&hellip;</p>
+        </div>
+      {:else if app.screen === "missing"}
         <div class="flex h-full items-center justify-center p-6">
           <div class="w-full max-w-sm rounded-2xl bg-card-light p-8 shadow-lg dark:bg-card-dark">
             <h1 class="mb-1 text-2xl font-bold">Workspace Not Found</h1>

apps/tauri/src/app.css

@@ -36,6 +36,12 @@ body {
   background: transparent;
 }
 
+/* Safe area CSS variable — content elements opt into this, overlays don't */
+:root {
+  --safe-top: env(safe-area-inset-top);
+  --safe-bottom: env(safe-area-inset-bottom);
+}
+
 .linux-window-border {
   border: 1px solid rgba(0, 0, 0, 0.15);
   box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25), 0 0 2px rgba(0, 0, 0, 0.1);

apps/tauri/src/lib/screens/SetupScreen.svelte

@@ -221,6 +221,7 @@
 
 <!-- svelte-ignore a11y_no_static_element_interactions -->
 <div class="flex h-full flex-col" onmousedown={handleDrag}>
+  <div class="shrink-0" style="height: var(--safe-top)"></div>
   <!-- Title bar area with window controls -->
   <header class="flex h-11 shrink-0 items-center justify-between px-2">
     <div>

apps/tauri/src/lib/screens/TasksScreen.svelte

@@ -215,6 +215,7 @@
 >
   <!-- Drawer panel -->
   <div class="flex h-full shrink-0 flex-col bg-surface-light dark:bg-surface-dark" style="width: 80cqi">
+    <div class="shrink-0" style="height: var(--safe-top)"></div>
     <!-- Drawer header: workspace switcher + settings -->
     <!-- svelte-ignore a11y_no_static_element_interactions -->
     <div
@@ -327,7 +328,7 @@
     </div>
 
     <!-- Drawer footer: sync status -->
-    <div class="shrink-0 px-4 py-2.5">
+    <div class="shrink-0 px-4 py-2.5" style="padding-bottom: max(0.625rem, var(--safe-bottom))">
       {#if app.isWebdav}
         <div class="flex items-center gap-2">
           <!-- Status dot -->
@@ -374,6 +375,7 @@
     >
       <!-- Sub-panel: Task list -->
       <div class="relative flex h-full w-1/3 flex-col">
+        <div class="shrink-0" style="height: var(--safe-top)"></div>
         <!-- Header / drag region -->
         <!-- svelte-ignore a11y_no_static_element_interactions -->
         <header
@@ -495,6 +497,7 @@
 
         <!-- Task list -->
         <main class="flex-1 overflow-y-auto">
+          {#key app.activeListId}
           {#if app.lists.length === 0}
             <div class="flex h-full flex-col items-center justify-center p-8 text-center">
               <p class="text-lg font-medium opacity-60">No lists yet</p>
@@ -558,11 +561,13 @@
               {/if}
             {/if}
           {/if}
+          {/key}
         </main>
 
         <!-- FAB button -->
         <div
-          class="pointer-events-none absolute bottom-6 left-0 right-0 z-20 flex justify-center transition-all duration-250 ease-out {newTaskState.open ? 'opacity-0 scale-75' : ''} {showDrawer || taskStack.length > 0 ? 'translate-y-24 opacity-0' : 'translate-y-0 opacity-100'}"
+          class="pointer-events-none absolute left-0 right-0 z-20 flex justify-center transition-all duration-250 ease-out {newTaskState.open ? 'opacity-0 scale-75' : ''} {showDrawer || taskStack.length > 0 ? 'translate-y-24 opacity-0' : 'translate-y-0 opacity-100'}"
+          style="bottom: max(1.5rem, var(--safe-bottom))"
         >
           <button
             onclick={() => { if (app.activeListId) newTaskState.open = true; }}
@@ -578,6 +583,7 @@
 
       <!-- Sub-panel: Task detail -->
       <div class="relative flex h-full w-1/3 flex-col bg-surface-light dark:bg-surface-dark">
+        <div class="shrink-0" style="height: var(--safe-top)"></div>
         {#if parentTask}
           {#key parentTask.id}
             <TaskDetailView task={parentTask} onback={closeDetail} onopen={pushTask} />
@@ -587,6 +593,7 @@
 
       <!-- Sub-panel: Subtask detail -->
       <div class="relative flex h-full w-1/3 flex-col bg-surface-light dark:bg-surface-dark">
+        <div class="shrink-0" style="height: var(--safe-top)"></div>
         {#if subtaskDetail}
           {#key subtaskDetail.id}
             <TaskDetailView task={subtaskDetail} onback={closeDetail} />
@@ -603,7 +610,7 @@
 <!-- svelte-ignore a11y_no_static_element_interactions -->
 <div
   class="absolute inset-0 z-50 flex transition-opacity duration-200 {showSettings ? 'opacity-100 pointer-events-auto' : 'opacity-0 pointer-events-none'}"
-  style="padding: 4%"
+  style="padding: 4%; padding-top: max(4%, env(safe-area-inset-top)); padding-bottom: max(4%, env(safe-area-inset-bottom))"
 >
   <!-- Backdrop -->
   <div